Barrel-head-shaping machine.



E. F. BBUGLER.

BARREL HEAD SHAPING MACHINE. APPLICATION FILED FEBJB 1912.

Patented June 3, 1913.

6 SHEETS-SHEET 1.

By O 2 g m Attorney coLUMmA PLANOGRAPH co4. \\/\sHlNnToN, u. cA

E. F. BEUVGLER. BARREL HEAD SHAPING MACHINE. APPLIUATION FILED riz-R23,1912.

1,063,497, Patented June 3, 1913.

6 SHEETS-SHEET 2.

www

CDLUMBM PLANouRAPH' C0.. WASHINGTON. D, C.

E. E. BEUGLER.

BARREL HEAD SHAPING MACHINE.

APPLICATION FILED 1113.23, 19.12.

1,063,497. n Patented June 3, 1913.

6 SHEETS*-SHEET 3.

Witnesses. EM T fb Inventor.

',ux IIMBI'A PLANoGrzAPH C0. WASHINGTON, D. c,

E. F. BEUGLER. BARREL HEAD SHAPING MACHINE `APPLICATION' FILED maza,1912.

1,063,497, Patented .rune 3, 1913.

6 SHEETS-SHEET 4.

Witnesses RAW? .R ya

Inventor;

COLUMBIA PLANouizAPH C0.. WASHINGTDN. D, c.

E.F. BEUGLER. BARREL HEAD SHAPING MACHINE.

APPLICATION FILED I'EB.23, 1912.

Patented June 3,1913.

6 SHEETS-SHEET 5.

hdmig MXL Inventor. By

orney Witnesses.

conu'MmA PLANDGRAPH c0,. WASHINGTON, D. C.

E. F. BEUGLER. BARREL HEAD SHAPING MACHINE. ABPLIGATION FILED Emma,1912.

Patented June 3, 1913.

6 SHEETS-SHEET 6.

Attorney C Iii CDLUMBM PL UNITED STATES PATENT OFFICE.

EDWIN F. BEUGLER, OF BUFFALO, NEW YORK, ASSIGNOR TO E. & B. HOLMES MA-CHINERY COMPANY, OF BUFFALO, NEW YORK, A CORPORATION OF NEW YORK.

BARREL-HEAD-SHAPING MACHINE.

Specication of Letters Patent.

Patented June 3,1913.

Application filed February 23, 1912. Serial No. 679,411,

To all whom, t may concern.'

Be it known that I, EDWIN F. BEUGLER, a citizen of the United States,residing at Buifa-lo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in Barrel-Head-ShapingMachines, of which the following is a specification.

This invention relates to a machine for cutting and sha-ping articlesand primarily to a machine of that class for cutting and shaping theheads employed to close the ends of barrels, casks, kegs and the like.

Among the features of the invention are a work supporting mechanismwhich is arranged so that it can be turned, a plurality of cut-tingmechanisms arranged relatively to the work supporting mechanism andadapted to simultaneously operate againstwork held in said worksupporting mechanism when said work supporting mechanism is turned orswung in a curved path to bring the surface of the work in cut-tingcontact with the cutting` mechanisms, mechanism for adjusting thecutting curve and thereby varying the circumferential form of thecompleted head, and mechanism for regulating the angle and depth of thecut.

rlhe main object of the invention is to produce a machine of this classwhich is power operated and manually controlled and thus is as nearlyautomatic as possible, in which the work is supported conspicuously insight of the operator, in which the work can be quickly clamped in itssupporting mechanism or released therefrom, and in which the mechanismscan be conveniently and almost instantly adjusted to change the curve ofthe cut. I-Io-wever the invention is not to be considered as limited tothe above stated mechanisms as their order of operation on heads mightbe altered, changed or varied or some of said mechanisms might bealtogether omitted or dispensed with without rendering the mechanisminoperative or incomplete. For instance where it is desired to cut andshape articles to the same identical liXed form, the curve adjusting andangle and depth regulating mechanisms could be omitted.

lWhile the above stated features are the most important features of theinvention it should be understood that the invention also consists incertain other novel mechanisms and detail; of construction which willloey fully and clearly hereinafter described and claimed, referencebeing had to the accompanying drawings consisting of siX sheets inwhich,-

Figure l is a top plan view of the improved shaping machine. Fig. 2 is afront elevation of the improved shaping machine. Fig. 3 is a sideelevation of the improved shaping machine looking at it from the left,the cutting mechanism located on the left and the lever for swinging orturning the work supporting mechanism being removed o-r omitted to moreclearly and completely expose t-he work support-ing mechanism. Fig. 4 isa fragmentary view of the improved shaping machine partially in rearelevation and partially in vertical section to illustrate the worm andother gearing for revolving the work, the foot operated shifting levermechanism for the clamping elements of the work supporting mechanism,and the slotted locking block for the shifting lever mechanism. Fig. 5is an enlarged fragmentary view to show the cam roller, and the springtensioned friction mechanism holding a work supporting shaftI mechanismagainst involuntary rotation when it is out of driving engagement withthe gear driving mechanism. Eig. 6 is a fragmentary central verticalsection through the lower portion of the machine frame, and the worksupporting table to show the manner of moving the work supporting tableon anti-friction bearings so that it can be easily turned. Fig. 7 is afragmentary top plan view of the central port-ion of the impro-vedmachine with the clamping members of the work supporting mechanismremoved, the cutting mechanisms and their supports being omitted and thedriving mechanism being also omitted, a horizontal section being takenthrough the supporting standard of the driving mechanism on line A-AFig. 4, to leave the lower portion of the standard and show the stop forthe work supporting table, and the work supporting table being shown inlocked operating position. Fig. 8 is a fragmentary top plan view of thecentral portion of the improved machine with the clamping members of thework supporting mechanism removed, the rcutting mechanisms and theirsupports being omitted and the driving mechanism being also omitted, ahorizontal section being taken through the supporting standard of thedriving mechanism on line A-A Fig. t, to leave the lower portion of thestandard and s how the stop for the work supporting table, and the worksupporting table and its parts and levers turned from the position shownin Fig. 7 to a non-engaging position. Fig. 9 is an enlarged detachedcentral vertical section through the carriage of one of the cuttingmechanisms. Fig. 10 is an enlarged detached end view of the carriage ofone of the cutting mechanisms. Fig. 11 is a transverse vertical sectionthrough the carriage of the cutting mechanism on line B-B Fig. 9. Fig.12 is an enlarged fragmentary view partially in section to show thefrictional lock for the cam for controlling the form of the cuttingcurve. Fig. 13 is an enlarged fragment-ary view partially in section ofthe opposed clamping members of the work supporting mechanism and theends of the shafts on which they are mounted, also showing a barrel headheld in position therein in dotted lines. Fig. 1-1 is an enlargeddetached side elevation of the curve controlling cam. Fig. 15 is atransverse section through the cam on line C-C Fig. 14. Fig. 16 is atransverse section through the cam on line D-D Fig. 141. Fig. 17 is atransverse section thro-ugh the cam on line lil-E Fig. 14.

In referring to the drawings in detail, like numerals designate likeparts.

This improved machine is utilized for cutting and shaping objects andarticles of wood or other suitable material; and, in brief, it consistsof work supporting mechanism, cutting mechanism, and manual means forturning the work supporting mechanism to move the work clamped thereinint-o cutting contact with the cutting mechanism. The specific type ofthe improved machine shown in the accompanying drawings is designed tocut and shape the surrounding edges of heads employed to close the endsof barrels, kegs and other packages and it is so constructed andarranged that a head can be quickly clamped in place, brought intocutting Contact and then released and removed after it is cut andshaped.

In the following description, the machine frame will be first described,then the several mechanisms in the order of their operation, and finallythe operation of the machine and also the manner of adjusting theseveral mechanisms.

The machen@ frame--The machine frame has a comparatively flat broad base1 and is of an elongated angular character when viewed from the top asshown in Fig. 1. Two supporting portions 2 and 3 project vertically upfrom the ends of the base and are enlarged atthe top to form supportingbeds for the carriages of cutting mechanisms as will be described morecomprehensively later on. The central portion of the machine frame isprovided with a short raised portion 41- as shown in Figs. 1, 2, G, andS of circular form on which work supporting mechanism is mounted so asto turn horizontally.

T/Ie work .Su/)porting mec/z(miauw-This mechanism includes a table,having a circular base 5 provided with a bearing groove G in its undersurface in which a series ot anti-friction balls 7 which contact withand roll on the upper surface of the portion #l as shown in Fig. 6, areloosely supported. The base 5 is provided with an oute' annulardepending flange 8 which projects over the edges of portion el, see Fig.G, to prevent lateral movement of the base 5 en the por tion 4. rlQwotapering members t) and 10 project vertically up from the base 5 and areprovided with journal boxes 1l and 12 in which two horizontal shafts 13and 14- are respectively journaled. These two shafts will be hereinafterdesignated as the front and rear shafts, and are arranged inlongitudinal alinement with each other as will be noted by referringmore j iartieularly to Figs. 1, 3 and 13.

rllwo work clamping members are fastened on the respective inner ends ofthe two shafts 13 and 14 and in opposed position relative to each other.The opposed work clamping members are preferably constructed as shown inFig. 13 and will be respectively designated hereafter as the frontclamping member and the rear clamping member. The front clamping memberconsists of a hub 15 which is fitted on the inner end of the shaft 13and fastened thereon by a set screw 1G, an outer annulus or ring 17which is concentric with the hub and is connected thereto by a series ofdiagonally extending radial arms 18, and a series of screws 19 arrangedin screw-tlnfeaded openings located at intervals in the annulus or ring.The inner ends of the screws are cone pointed and are adapted to embedthemselves in one of the side surfaces of a head, and the opposite orouter ends are provided with a groove in which the end of a screw driveror similar tool may be fitted for the purpose of adjustment. The rearclamping member has a hub 2O provided with a central tapering opening inwhich the tapering inner end Q1 of the rear shaft 1% is fitted andrigidly secured by a` lock nut 22 which is screwed on a. reducedextremity of the inner end Q1 of the shaft 14, as shown in Fig. 13, rFheouter portion of the hub 20 is tapered oppositely to the taper of itscentral opening and, as will be noted by referring to Fig. 13, isconsiderably wider than the inner portion of the hub and is providedwith an intermediate annular groove Q3 which is quite wide and leavestwo separated outwardly extending end flanges 24 and 25. These endflanges 24 and 25 are each. provided with a series of openings which areequal in numbei` and are arranged in registering position relatively toeach other' and a series of pins 2G are slidably fitted in theseopenings, each pin having its inner portion in one of the openings inthe flange 24 and its outer portion in the opening in the flange 25which registers with the opening in the flange 24 in which the innerportion of the pin is fitted, as shown in Fig. 13. A coil spring 27 isloosely fitted around that portion of each pin 26 located in the grooveQ3 and has one of its ends bearing against the inner side surface of theflange 9.5 and its other or inner end bearing against a washer 28 looseon the shaft which presses against the oppositely projecting ends of asmall pin 2821 driven through a transverse opening in the pin 26. Thesmall transverse pins 2S serve not only to tension the pins 26 but alsoto limit their inward movement by striking against the inner sidesurface of the flange 24 as shown in Fig. 13. lt will be noted byreferring to Fig. 13, the inner ends of the pins 26 are not madeentirely conical as the inner portion of each pin is cut or concaved outas shown at Q9 in said Fig. 13. The purpose of this is to provide afairly broad flat slightly concaved tapering bearing surface on theinner side of each pin end which as the pin end enters the wood of thehead will press against and tend to force the head parts more firmlytoward each other.` This peculiar forcing together tendency of the pinsQ6 is greatly assisted by their arrangement in the hub 2O so that theyextend diagonally with respect to the shaft 15, c. the inner ends of thepins are separated a greater distance from the shaft 111 than the outerends and the pins in fact spread inwardly from their outer ends to theirinnerends. As these pins 26 are arranged in a circular series and asthey extend diagonally instead of parallel with the shaft, they serve toexert a radially inward pressure as they embed themselves in the surfaceof the wood.

it centering point for the head is arranged at the inner end of one o-fthe shafts which is yieldingly mounted in the inner end thereof. In thepreferred adaptation of this feature of the invention as shown in Fig.13 of the accompanying drawings, it will be noted that the rear end ofthe shaft 18 which is of the same diameter throughout is provided with adeep longitudinal central end recess 30 in the interior portion of whicha coil spring` 31 is loosely fitted. A centeringpin 3Q is slidablyfitted in the recess against one end of the coil spring and has aprojecting sharpened or conical shaped centering point rlhe centeringpin 82 is limited in its outward movement by a set screw 34 which isscrewed into the end of the shaft 13`a1id has an enlarged head whichslidably engages in a groove 35 in the side of the centering pin asshown in Fig. 13.

In o-rder to clamp a head in place between the clamping members it isnecessary to provide means for moving the heads to- 'ard o1.l from eachother. In the present adaptation of the invention, as shown in theaccompanying drawings, the rear shaft 1li is constructed and arranged sothat it will bodily slide in its bearing and thus move the rear clampingmember mounted on `its inner end toward or from the front clampingmember mounted on the fro-nt shaft 13. This sliding movement of the rearshaft is accomplish-ed through a series of pivotally connected leversand links, as shown in Fig. 3' in which the position of the links andlevers vwlhen the movable rear clamping member is in clamping positionis shown in full lines and the changed position when in non-clampingposit-ion in dotted lines.

As the tapering vertical members 9 and 10 of the table of the worksupporting mechanism are located at and project up from approximatelythe frontand rear thereof as shown in Fig. 1, they will be hereinafterdesignated as the front vertical member 9 and the rear vertical member10 and the bearing or 'journal box 11 located at the upper end of thefront vertical member will he hereinafter designated as the frontbearing or journal box, and the bearing or journal box 12 located at theupper end of the rear vertical member will be hereinafter designated asthe rear bearing or journal box. N ow referring to Fig. 3 it will benoted that the rear vertical member 10 is provided with a horizontalrearwardly extending portion 36 which is provided with a slideway inwhich a pivot block 37 is adjustably fastened b v a bolt 38. The pivotblock is provided .with a bifurcated or forked rear portion 39 as shownin Figs. 1, 3, 7 and 8. The pivotally connected levers and links arepreferably three in number consist-ing of a rear lever 40 which is in avertical position when the clamping members are in clamping position asshown in Fig. 3 and slightly out of a vertical position when theclamping members are spread from each other, an intermediate connect-inglink 41 and a forwardly extending angular foot lever 42. The rearvertical lever Ll() has an enlarged eye portion 43 at its upper end inwhich a hardened pin eel is adjustably fitted and secured by a set screw15, see Fig. 1. The front end of the hardened pin 414 is arranged toContact with and press against a similar hardened pin 4G fitted in therear end of the rear shaft 14. The vertical lever is loosely connectedto the rear end of the rear shaft by an angular bracket 17 which isbolted to the vertical lever lO near the upper end thereof and has anangular bifurcated or forked upper portion which is arranged in invertedposition astride a periplierally grooved or recessed portion 48 near therear end of the rear shaft 14 as shown in Figs. l, 3 and 4. The verticallever 40 is pivoted between the forks of the bifurcated rear portion 39intermediate its ends by a pivot pin 49 as shown in Fig. 3. The link 41is pivoted at its opposite ends to the lower end of the rear verticallever 40 and the rear end of the angular' foot lever 42 respectively.The angular foot lever 42 extends forward from its pivotal connectionwith the link 41 and is fulcrumed at an intermediate portion between apair of separated upwardly projecting ears 50 and 51 extending up fromthe base of the table by a pivot pin 52 as shown in Figs. 7 and 8. Abroad fiat foot supporting plate 53 is located at the front end of thelever as shown in Figs. 7 and 8.

The connecting levers and links together with the rear shaft 14 and itsclamping member are normally held in a non-clainping position and areautomatically returned to a non-claiiipiiig position from a clampingposition when the foot lever is released by a spring or other suitablemeans. Preferably a simple spirally coiled spring is employed for thispurpose, such as the spring 54 shown in Fig. 3 which loosely eiicirclesa bar 55 slidably fitted through an opening in a depending portion 5G ofthe pivot block 37 and an opening in the rear vert-ical lever 4()slightly below the point at which said lever 40 is pivoted to the pivotblock 37. Nuts 57 and 58 are screwed on the respective opposite ends ofthe screw bar and the co-il spring 54 which is of the expansion type isheld between the nut 57 at the forward end of the bar and the dependingportion 5G. As the tendency f the spring is to expand necessarily therear end of the bar is pulled forward with a. spring tension whichcauses the rear vertical lever to turn from the position shown in fulllines in Fig. 3 to the position shown in dotted lines in said Fig. 3.

The base of the table is fastened to the base of the machine frame by avertical screw bar 59 which passes centrally through an opening inthetable base and has its lower end screwed into a screw threaded socket 60in the machine base as shown in Fig. 6. The upper portion of the centralopening through the table base is enlarged and counter bored as shown at61 in Fig. 6 and two lock nuts are fitted on the upper projecting end ofthe bar 59 which are located in the enlarged counter bored opening G1.

A self locking device is provided for positively holding the movableclamping niember in its clamping position. Preferably the locking deviceis in the form of an angular bracket the lower portion 62 of which isfastened in stationary position to the base of shown in dotted lines inFig.

` shifted and locked against `ment in the upper horizontal portion themachine frame by bolts 63 iii the rear 'foot lever 42 is fitted throughthe slot as shown in said figures and is adapted to rest i in the lowerpart of the vertical portion (3G of the angular slot as shown in dottedlilies l in Fig. 3 when the work supporting mechanism is turned to holdthe work out of cutting contact or diagonally in the machine as shown inFig. 8 and the clamping members are in a spread non-clamping position.When the foot lever 42 is depressed, its intermediate portion, fittedthrough the slot in the bracket which is provided with upper and loweredge flanges (37 to forni broader wearing surfaces, is raised fi'oni theposition 3 to the posiis automatically downward move- G5 by the turningof the work supporting mechation shown in full lines and y nism from theiioii-cutting position shown in Fin* v ty 8 to the cutting positionshown in Fig. 7

The table of the work supporting mechanism is partially rotated orrovolveil to swing the work from the non-cutting position in Fig. 8 tothe cutting position shown in Figs. l and means.

7 by manually controlled Referring to Fig. Q it will be noted that ahand lever G8 is provided at its rear jend with a collar G9 which isrigidly fastened on the upper end of a bar which is Journaled in avertical bearing 71 formed in j a bracket or lug 72 extending from themachine franie as shown in F 2. A collar 7 3 is also attached to thelower end of the bar 70 and is provided with a laterally extending outerend to one end of a link 7 5 by a pivot pin 76. The opposite or rear endof the link is pivoted to a lateral lug 77 on the table of the worksupporting mechanism by a pivot pin 78. The table of the work supportingmechanism is partially rotated or swung in a clockwise direction fromthe noncutting position shown in Fig. 8 to the position shown in Fig. 7by the opeiator or workman grasping the hand lever and pulling itforward from the position shown in Fig. 8 to the position shown in Fig.7.

Means for revolving t/zc work sappor'z'fng mechanism- The work supportedby the work supporting mechanism is revolved when in cutting and shapingposition so that varm or crank 74 which is pivoted at its all parts ofthe edge of the work will be cut and shaped. rThis is preferablyaccomplished by means of a system of gearing which automaticallyconnects with and rotates one of the horizontal shafts of the worksupporting mechanisms when the table is turned on its bearing to bringthe work in cutting position. The preferable construction of thisfeature of the improved machine is illustrated in Figs. 1, 2, 3, 4, 7and 8 and is perhaps best shown in Fig. 4. A vertical standard or framemember 79 is firmly bolted at its lower end to a rear extension 80 ofthe machine base by bolts 81. The standard is located in the rear of thetable of the work supporting mechanism and to one side of the center ofthe machine frame. The top of the standard or frame member is hollowedout to form an oil reservoir 82 and a long horizontal bearing 83 isformed on the reservoir 82 in which a shaft 84: is journaled. A groovedwheel or pulley 85 is mounted on the projecting end of the shaft S1 anda worm wheel 86 is mounted on an intermediate portion of said shaft, asuitable portion of the bearing S3 being cut away to allow theinterposition of the wcrm wheel. in the lubricant 87 in the reservoir 82as sho-wn in Fig. l1. A stationary non-rotatable bar or shaft 8S ismounted in the upper end of the standard 7 9 being arranged in a planeabove the shaft 84 and at a right angle to said shaft, and a worm gearS9 enmesh with the worm gear S6 is rotatably mounted at one end of thestationary shaft. A wide pinion 91 which is preferably formed integralwith the gear wheel S9 is rotatably mounted on the opposite end of theshaft S8 as shown in Fig. 1 and is adapted to mesh with a gear wheel 92mounted on the rear shaft 14 of the work support-ing mechanism when thework supporting mechanism is shifted or-turned to the position shown inFigs. 1, Q and 7.

The cutting mechanism-In the form of the machine illustrated, twocutting mechanisms, each of which is arranged diagonally opposite theother, are employed. These cutting mechanisms are mounted on thevertical supporting portions 2 and 3 and on opposite sides of the worksupporting mechanism as shown in Fig. 1 and as they are of identicalconstruct-ion with the exception that they are opposed to each other, adetail description of one, it is thought, should suffice for both.

For details of the cutting mechanism reference is to be had to Figs. 1,2, 9, 10 and 11.

Referring to Figs. 10 and 11 it will be seen that both of the supportingportions 2 and 3 are provided on their top surface with a longitudinallyextending raised rib or guide 93 which is hollowed out or concave/d onits top surface as shown at 9st in Figs. 9,

The worm wheel is arranged to run 10 and 11 for a purpose to behereinafter explained. The rib or guide 93 is in the f orm of a reversedwedge, and a plate 95 is fitted on the top surface of each of thesupporting portions which is provided on its under surface with a groove96 of corresponding Wedge shape in which the rib or guide 93 slidablydovetails, see Figs. 10 and 11. The plate 95 is moved longitudinally onthe raised rib or guide by a screw bar 97 which passes through a screwthreaded opening in a cross web 98 in the concavity 94. The screw baralso passes loosely through an opening in a depending portion 99 locatedat one end of the plate in which it is rotatably supported. To preventlongitudinal movement of the screw bar 97 in the depending portion 99lock nuts 100 and 101 are screwed on the screw bar on opposite sides ofthe depending portion as shown in Fig. 9.

The carriage for the cutting mechanism is mounted on the plate 95 and isso arranged that it is adjustable at a right angle to the adjustment ofthe plate 95 on the frame portion or transversely across the machine.Referring to Fig. 9 the carriage preferably consists of a base 102 andtwo bearings 103 and 10aL in separated arrangement located above thebase and supported from said base by short vertical standards 105 and106. The bearings 103 and 104 extend horizontally in alinement with eachother as shown in Fig. 9. A cutter shaft 107 is journaled in thebearings 103 and 10-1 and a pulley 108 is mounted thereon being locatedbetween the bearings see Figs. 1 and 9. A cutter head 109 of anypreferred type is mounted on the inner end of the cutter shaft as shownin Fig. 1. The transverse adjustment of the carriage on the plate 95 isdue to the transverse slot-s 110 formed in the carriage through whichscrew bolts 111 are fitted and screwed into vertical openings in theplate 95. Two set screws 112 and 113 are screwed in horizontal openingsin the carriage base 102 and are arranged in exact alinement with eachother, extending transversely of the carriage and bearing with theirinner ends against opposite sides of one of the screw bolts 111. It willthus be seen that the carriage together with the cutter shaft and cutterhead can be manually adjusted transversely of themachine independentlyof the plate 95 and also manually and independently adjustedlongitudinally of the machine in conjunction with the plate 95.

Means for oma/ag the form of the worin- Besides the manually operatedtransverse and longitudinal adjustments of the carriage of the cuttingmechanism, the cutter shafts are connected together so that they aresimultaneously and correspondingly adjusted in a longitudinal directionin their bearings. The purpose of' this adjustment is to provide meansfor cutting the head slightly out o-f round, that is, in a slightlyelliptical or cylindraceous form to compensate for the irregularity ofshrinkage in the wood of the head as it dries. The preferredconstruction of the means connecting the cutter shafts is illustrated inFigs. 1 and 2. Referring to Fig. 1, a transverse lever 114 is pivotedcentrally to an ear 115 ext-ending rearwardly from the right hand orouter rear corner of the carriage of the cutter mechanism located on theright of the machine frame. A long longitudinal bar 116 is arranged inthe rear of the carriages and has its rightend provided with a dependingblock 117 which has an upper collar portion fastened by a set screw 11S.The rear extremity of the transverse lever 114 is pivoted to the lowerend of t-he block 117. A longitudinal bar 119 is arranged in the frontof the machine which is considerably shorter than the bar 116 andextends in front of the right hand cutter mechanism and the worksupporting mechanism only. The bar 119 is provided at its right end witha depending block 120 that has a collar 121 in which the bar end fitsand is fastened by a. set screw 122. The forward portion of thetransverse lever 114 tits loosely through a transverse slot. 123 in themachine frame which is made sutliciently wider than the lever to allowfor the necessary adjusting movement of the lever, as shown in Fig. 2,and said lever is pivoted at its forward end to the lower end of thedepending block 120. The front longitudinal bar 119 is connected to alongitudinal slide bar 124 which is slidably mounted in forwardlyextending brackets 125 attached to the carriage of t-he right handcutter mechanism by an angular clamp member 126 and the slide bar 124 isin turn coupled to the cutter shaft of the right hand eut-ter mechanismby a two part pivotally jointed transverse connection, one of the parts127 of which is fastened to the outer or right hand extremity of thecutter shaft and the other part 128 of which is fastened to thecorresponding extremity of the slide bar 124, as shown in Figs. 1 and 2.The left. hand extremity of the long rear longitudinal bar 116 isslidably supported in a rearwardly extending bracket 129 attached to thecarriage of the left hand cutter mechanism and said bar 116 is connectedto a slide longitudinal bar 1.30 slidably mounted in rearwardlyextending brackets 131 by an angular clamp vmember 132 similar to themember 126 shown in Figs. 1 and 2. The slide bar 130 is in turn coupledto the cutter shaft of the left hand cutter mechanism by a two part'pivotally jointed transverse connection which has one of its parts 133fastened to the cutter shaft and its other part. 134 fastened to theslide bar, as shown in Fig. 1. The connected longitudinal rods andtransverse lever are automatically moved by roller mechanism tosimultaneously and correspondingly shift the two cutter shafts to varythe circumferential cutting curve and thereby vary the cylindraceousform of the finished head.

Referring to Figs. 1, 2, 3, 7 and 8 a large wide tapering roller 135 isrigidly mounted on the front end of the fronty or idle shaft. 13 of thework supporting mechanism and is provided with a tapering peripheralsurface of cylindraceous form, which varies from the perfect cylindricalshape at its larger and rear end, toward its front end, graduallychanging from a cylindrical form in cross section to the rounded oblongform shown in Fig. 17. The reduced smaller and front end 13G of theroller is also of a perfect cylindrical form. The object in forming theroller 135 in this peculiar shape is to provide means for cutting thehead slightly out of round to compensate for the shrinkage of thematerial in drying. Other cross sectional forms of the roller 135 areshown in Figs. 15 and 16 to illustrate the difference in the ellipticalcharacter of the roller. The variations in form of the roller are alsoshown in dotted lines in Fig. 5. Islercinafter the roller 135 will bereferred to as the large tapering cylindraceous roller or in some partsas simply the large roller to distinguish it from other rollers. Theleft hand extremity of the front longitudinal bar 119 is connected by anenlarged end block 137 to a vertical lever 138 which carries a smallnarrow roller 139 which rotatably contacts with the peripheral surfaceof the large wide cylindaceous roller 135, as shown in Fig. 5. The lever138 extends through a transverse vertical slotv 14() in a horizontalbracket 141 attached to the inner side of the vertical frame extension 3and is pivoted at its lower end to a lug 142 extending upward from themachine base.

The lever 138 is shifted transversely in the slot 140 to move the smallnarrow roller 139 longitudinally across'the peripheral face of the largewide tapering cylindrzufeous roller and thus change or vary thecircumferential contour of the cutting curve. Means is provided forfrictionally locking the lever 138 .in its adjusted position whichpreferably comprises a block 143 adjustably fastened on the lever 138and having a vel'-` tical depending enlargement 144 which is hollowedout to provide a vertical chamber 145 in the lower portion of which aspiral spring 146 is placed as shown in Fig. 1.2. A vertical pin 147 isslidably mounted in the upper portion of the chamber 145 and upon thespring 146 and has a conical upper end which is adapted to be forced upinto any one of a series of V-shaped recesses 148 cnt in the undersurface of th`e bracket 141 attached to the machine frame substantiallyas shown in Fig. 12. The small narrow roller 139 is held against theperipheral surface of the large wide roller 135 by the tension of a longspiral spring 149 one end of which is attached at one end to a collar150 fitted on the shaft 116 the other end being fastened to an eye 151On the vertical standard 79 as shown in Figs. 1 and 2.

The front or idle shaft 13 of the work supporting mechanism is providedwith a frictional stopping mechanism which preferably consists of tworollers 152 rotatably mounted on pins 153 extending from the front endof roller 135 on opposite sides of the center thereof and a pivoted arm154 which is yieldingly forced against the rollers 150 and 151 by thetension of a spring 155.

Referring to Fig. 5, it will be observed that an angular bracket 156 isfastened to the machine frame and has laterally extending upper andlower arms 157 and 158. The arm 154 which is preferably in the'form of abell crank is pivoted at or near its bend to the lower lateral arm 153by a pivot bolt 159. The side surface 1GO of the upper portion of thearm 154 which bears against the rollers 150 and 151 is of an angularferm as shown in Fig. 5. The tensioning spring 155 has its upper endhooked over a lateral pin 161 at the outer extremity of the upper arm157 and its lower terminal hooked on the notched lower end of the arm154 as shown at 162 in Fig. 5. Vhen the clamping members of the worksupporting mechanism are in clamping position andthe shafts thereof areslowly revolving, the arm 154 is rocked under the tension of the spring155 and the pressure of the rollers 150 and 151 swinging to and fro fromthe position shown in full lines to the position shown in dotted linesin Fig. 5. When the table of the work supporting mechanism is returnedvto an inoperative position and the rear driven shaft 14 is moved out ofmeshing engagement with the revolving gear mechanism, the rotation ofthe front idle shaft 13 is almost instantly stopped by the pressure ofthe arm 154 against the rollers 15 and 151 and said front shaft is heldagainst involuntary rotation by the tension of the spring 155.

' A spring 163 is employed to automatically return the work supportingmechanism to an inoperative non-cutting position when said worksupporting mechanism is released` said spring being arrangedhorizontally and having one end fastened to an eye screw 164 attached tothe vertical frame extension 2 and its opposite end fastened to asimilar eye screw 165 attached to a vertical rib 166 of one of thevertical members of the work supporting mechanism. as shown in Fig. 2.It will also be observed that the top surface of the base of the tableis mad-e. slanting as shown in Fig. 6 for the purpose of guiding thesawdust and small particles of wood to one side of the machine.

Operation- The operation of the present type of my improved machine asshown in the accompanying drawings and comprehensively set forth in theforegoing descrip ti-on is as follows A suitable article to be cut andfinished such as a barrel head is held by the operator in centralposition between the clamping members as shown in Fig. 3 and the footlever 42 is forced-downward from the position shown in dotted lines inFig. 3 to the positi-on shown in full lines in said Fig. 3. Thisdownward movement of the foot lever rocks the vertical shaft 40 andmoves the rear shaft 14 longitudinally in its bearings and transverselyforward, moving the rear clamping member toward the front clampingmembers and clamping the work firmly between the clamping members. Theoperator now grasps the hand lever G8 and pulls it forward from theposition shown'in Fig. 8 to the position shown in Figs. 1, 2 and 7 whichswings the table of the work supporting mechanism horizontally on itsaxis from the diagonal position shown in Fig. 8 to the transverseposition shown in Figs. 1, 2 and 7 and brings one corner of thecircumferential edge of the barrel head in cutting contact with thecutter head of one of the cutter mechanisms and the opposite corner ofthe circumferential edge in cutting c-ontact with the opposite cutterhead. The swing movement of the table also moves the foot lever inlocking engagement with the bottom wall of the upper horizontal portionG4 of the angular slot in the stationary bracket and automatically locksthe rear movable clamping member in its clamping position, as shown inFig. 3. Likewise the gear wheel 92 mounted on the rear shaft 13 isbrought into meshing contact with the pinion 91 by the swing movement ofthe table and the shaft 13 is started slowly revolving. llow referringto Fig. 8 it will be noted that the small narrow roller 139 is entirelyout of contact with the large roller 135 when the work supportingmechanism is in an inoperative non-cutting position and that theswinging of the said work supporting mechanism in cutting proximityrelatively to the cutter mechanism brings the roller 13) in Contact withthe roller 135 shown in Figs. 1, 2, 3, 5 and 7. The work supportingmechanism is held in its operative position in cutting proximity to thecutter mechanism by the hand of the operator or workman on the handlever G8 and is retained in said cutting position until the head isproperly cut. The hand lever G3 is then released by the operator and thetension of the spring 163 auton'iatically swings the table of the worksupporting mechanism away from the cutter mechanism or from the positionshown in F ig. 7 to the inoperative position shown in Fig. S. The returnmovement of the work supporting mechanism disengages the gear wheel 92from meshing engagement with the pinion 91 moves the roller 139 out ofContact with the roller 135 and shifts the foot lever 42 ont of thehorizontal portion (Set of the slot and permits the spring 54 toautomatically spread the clamping members and release the finished head.

The various adjustments of the parts and elements will be clearlyunderstood from the foregoing description and the accompanying drawings.

I claim,-

1. In a machine of the class described, a machine frame having a lowbase of an elongated angular form provided with a shortcentral raisedportion, and vertical supporting portions projecting up from theopposite ends of the base, cutter mechanisms supported in parallelnon-alined position from the vertical supporting mechanism and clampingmechanism pivotally mounted on the short cent-ral raised portion of themachine frame and in interposed position between the cutter mechanisms.

2. In a machine of the class described, two diagonally opposed cuttermechanisms having cutters in separated parallel pla-nes constructed andarranged to cut on opposite sides of the peripheral edge of the work andwork supporting mechanism located between said opposed cutter mechanismsand adapted to be moved to simultaneously7 bring the work in cuttingposition with both cutter mechanisms.

8. In a machine of the class described, two diagonally opposed cuttermechanisms hav ing cutters in separated parallel planes constructed andarranged to cut on opposite sides of the peripheral edge of the work andat points diagonally opposite each other and work supporting mechanismlocated between said opposed cutter mechanisms and adapted to be movedto simultaneously bring the work in cutting position with both cuttermechanisms.

4. In a machine of the class described, two diagonally opposed cuttermechanisms having cutters in separated parallel vertical planesconstructed and arranged to cut on opposite sides of the peripheral edgeof the work and work supporting mechanism lo` cated between said opposedcutter mecha` nisms and adapted to be moved horizontally in a curvedpath to simultaneously bring the work in cutting position with bothcutter mechanisms and to be rotated slowly while in said cuttingposition.

5. In a machine of the class described, a machine frame having a lowbase provided with a central raised portion and co-mparatively highvertical end extensions arranged out of longitudinal alinement withother,

work supporting mechanism having a swing table pivotally mounted on thecentral raised portion, opposed longitudinally alined shafts journaledin the swing table and carrying clamping members at their inner ends andcutter mechanisms each mounted on one of the vertical end extensions.

G. In a machine of the class described, the coinbination with cuttermechanism, of work supporting mechanism movable relatively to the cuttermechanism and provided with opposed clamping members; each of saidclamping members having a series of points arranged in a circle andadapted to embed themselves in the surface of the article clampedbet-weon the clamping members, one of said series of points beingconsiderably larger and longer than the points of the other series, andmeans for circumferentially contracting said larger and longer series asthe article is clamped between the clamping members.

7. In a machine of the class described, the combination with cuttermechanism, of work supporting mechanism movable relatively to thecut-ter mechanism and provided with opposed clamping members; saidclamping members each having a set of points adapted to embed themselvesin the surface of the article clamped between the clamping members andthe points of one of said sets being considerably larger and longer thanthe points of the other set and being yieldingly mounted in one of theclamping members and extending at an obtuse angle to the face of saidclamping member, said obtuse angled points being adapted to be forcedinwardly in the face of the clamping member as an article is clampedbetween said clamping members.

S. In a machine of the class described, the combination with cuttermechanism, of work supporting mechanism movable relatively to the cuttermechanism and provi ded with opposed clamping members; said clampingmembers each having a set of points adapted to embed themselves in thesurface of the article clamped between the clamping members and thepoints of one of said sets being considerably larger and longer than thepoints of the other set and being yieldingly mounted in one of saidclamping members and extending at an obtuse angle to the face of saidclamping member and said points having sharpened ends provided withfairly wide flattened and concaved surfaces on their inner sides.

9. In a machine of the class described, the combination with cuttermechanism, of work supporting mechanism movable relatively to the cuttermechanism and provided with opposed clan'iping members; each of saidclamping members having a series of points adapted to embed themselvesin the surface of the article clamped between the clamping members andthe points of one of said sets being yieldingly arranged in annular formin the clamping member with their embedding ends extending diagonallyoutward or at an obtuse angle to the face of the clamping member,whereby the circular formation of the embedding ends iscircumferentially contracted as the yieldingly mounted points ,preforced inwardly in the clamping meml0. In a machine of the classdescribed, two opposed cutter mechanisms in separated position, havingparallel non-alined shafts and cutter heads at the inner -ends of saidshafts and work supporting mechanism located between said opposed cuttermechanisms and adapted to be moved to bring the work in cutting positionwith both cutter mechanisms simultaneously; said work supportingmechanism having shafts in longitudinal alinement with each other andclamping members at the separated inner ends of said shafts.

1l. In a machine of the class described, two opposed cut-ter mechanismsin separated position, having parallel nonealined shafts and cutterheads at the inner ends of said shafts and work supporting mechanismlocated between said opposed cutter mechan nisms and adapted to be movedto bring the work in cutting position with both cutter mechanismssimultaneously; said work supporting mechanism having shafts inlongitudinal alinement with each other and clamping members at theseparated inner ends of said shafts, and the shafts of the worksupporting mechanism extending at right angles with the shafts of thecutter mechanism when the work is held in cutting position.

12. In a machine of the class described, two diagonally opposed cuttermechanisms, work clamping and supporting mechanism located between thetwo cutter mechanisms and constructed and arranged to have a swingmovement relatively to the cutter mechanism, and an independent clampingmovement, a hand lever controlling the swing movement, and a foot levercontrolling the clamping movement.

13. In a machine of the class described, two diagonally opposed cuttermechanisms, work clamping and supporting mechanism located between thetwo cutter mechanisms and constructed and arranged to have a swingmovement relatively to the cutter mechanism, and an independent clampingmovement, a horizontally movable hand lever controlling the swingmovement and a vertically movable foot lever controlling the clampingmovement, and a lock for holding the foot lever in its clamping positioncomprising a slotted block through the slot of which the foot leverloosely passes.

14. In a machine of the class described, two diagonally opposed cuttermechanisms, work clamping and supporting mechanism located between thetwo cutter mechanisms and constructed and arranged to have a swing'.movement relatively to the cutter mechanism, and an independent clampingmovement, a horizontally movable hand lever controlling the swingmovement and a vertically movable foot lever controlling the clampingmovement and a lock for holding the foot lever in its clamping positioncomprising a block having an angular slot through which the foot `leverloosely passes; said slot consist-ing of a horizontal upper lockingportion and a vertical portion eX- tending downward from one end of the'upper portion.

EDWIN I", BEUGLER.

Witnesses:

K. A. LANDIS, CARL SGHRAMM.

Copies of this patent may be obtained 1201'V five cents each, byaddressing the Commissioner of Patents. Washington, I). G.

